Bidens pilosa L.
Bidens leucantha, Bidens sundaica, Blackjack, Cobbler's pegs, Common Beggar's-tick, Hairy Beggarticks, Cobbler's Pegs, Farmer's Friend, Pitchforks, Romerillo, Shepherd's Needles, Spanish Needles
Life cycle: Annual
Growth Habit: Erect and sprawling
Propagation: Seeds, roots at the nodes along square purplish stems
Leaf Margin: Serrated and sometimes entire
Leaf Hairs: Nearly hairless
Leaf Structure: Lower leaves are simple and ovate. Upper leaves are mostly often pinnate with three to seven lobes.
Leaf Arrangement: Opposite
Root Type: Branching taproot
Flower Color: Five to eight white petals surrounding many yellow disk tubular florets.
- Common Ragweed Ambrosia artemisiifolia
- Beggarsticks spp., Bidens spp.
Herbicidal Control Options
- Preemergence: Selective control option not available
- Post Emergence: Selective control option not available
Please note: one or more of these active ingredients may exist in combination-type brand name products. Any material used for herbicidal control of any plant may vary in efficacy. Please read the full disclaimer on herbicide usage.